在TIGS，将鼓励您的孩子发掘和发展他们的学术才能，以发挥他们的全部潜能。尽管学校的学术水平很高，但我们提供了广泛多样的科目，以满足您孩子整个学年的不同需求和兴趣。全州范围的测试结果表明，我们的学生的表现大大优于全州范围的平均水平。我们的12年级学生中有超过50％的UAI达到80或更高，将12年级学生中的一半以上放在新南威尔士州所有12年级学生的前20％中。TIGS 12年级的大多数学生都继续在大学学习，而大多数人则获得了他们的首选大学学位。
The Senior School at The Illawarra Grammar School is characterised by purposeful learning within a joyous atmosphere, set in beautiful grounds. It is a place where students enjoy the pursuit of academic excellence underpinned by strong Christian foundations. At The Illawarra Grammar School, students investigate new areas of learning, persevere even when content is challenging, and enjoy the satisfaction of subject mastery.As well as the academic challenges that exist in the classroom, such as Enrichment Mathematics and subject-based competitions, there are many cocurricular activities that are enjoyed by students looking for further academic challenge.